Top California Renewable Energy Companies (46)

A global leader in applied safety science, UL Solutions transforms safety, security and sustainability challenges into opportunities for customers in more than 100 countries. UL Solutions delivers testing, inspection and certification services, together with software products and advisory offerings, that support our customers’ product innovation and business growth. The UL Certification Marks serve as a recognized symbol of trust in...

Clean Power Research® is advancing the energy transformation through cloud software that informs, streamlines and values energy-related decisions and processes for utilities, energy professionals and consumers. We’re focused on expanding our market reach and impact with new software technologies that help solve the energy industry’s problems. Recognized by BuiltIn Seattle as "Top 100 Best Places to Work in Seattle” and...

At TransGrid Energy we specialize in developing, owning, and operating utility-scale energy storage and PV projects, fundamental to establishing a resilient and sustainable energy grid.

We believe clean energy and backup storage should be accessible to everybody. That’s why SunPower designs all-in-one residential solar and storage solutions backed by personal customer service and the industry’s most comprehensive warranty. And with more than 35 years of dedicated solar experience, we’re the only U.S.-based solar company that’s been around longer than our 25-year warranty.

Toyota Research Institute (TRI) envisions a future where Toyota products, enabled by TRI technology, dramatically improve quality of life for individuals and society. To achieve its Vision, TRI’s Mission is to create new tools and capabilities focused on improving the human condition through research in Energy & Materials, Human-centered AI, Human Interactive Driving, and Robotics. We’re on a mission to improve...

Fourier is working on making on-site Hydrogen universally accessible. Our breakthrough architecture enables highly modular and fully automated electrolyzers that scale to any size and optimize efficiency at all loads. We are on a mission to transition the global energy landscape towards a purely sustainable and emission free future.

Blumen is a one stop software for renewables, energy, grid, and data center project development. Turn project files into permitting intelligence and engineering documents in minutes. Slash consulting costs, avoid critical risks, and prevent rework caused by regulatory complexity.

BoxPower provides clean, reliable, and affordable energy to rural consumers. Our ecosystem of software and hardware solutions optimize the performance and accelerate the deployment of solar plus storage microgrids. From energy audit to operation, BoxPower provides turnkey engineering, construction, and management services.

Deep Isolation offers an innovative solution to secure and dispose of spent nuclear fuel from commercial nuclear reactors. Our horizontal drill hole technology offers both safety and low cost. While the drilling technology is standard, Deep Isolation is the first company proposing to use this method for the safe isolation of spent nuclear fuel under a billion tons of rock...

Since 2012, Enpower Greentech has pioneered advanced battery breakthroughs. Our early work spanned solar installations using energy storage (both lithium-ion and sodium-ion batteries) for residential, commercial, and industrial applications in Asia, Europe and the United States of America. Today we produce record breaking energy dense batteries using our lithium metal anodes and proprietary battery chemistries. From manufacturing and technical centers in...

3Degrees, a certified B Corporation, makes it possible for businesses and their customers to take urgent action on climate change. We help organizations around the world achieve renewable energy and decarbonization goals through our work with global Fortune 500 companies, utilities, and other organizations that want to join the fight against climate change. The 3Degrees team has deep expertise in...

ZEROVA, a subsidiary of Phihong, emerged as a standalone company on September 1, 2022. Its primary objective is to specialize in the EV Charging Market. ZEROVA offers a comprehensive range of EV charging solutions for both commercial and passenger vehicles. Leveraging its robust research and development capabilities and extensive manufacturing expertise, ZEROVA develops high-quality hardware and software products tailored to...

Anaergia was created to eliminate a major source of greenhouse gases by cost effectively turning organic waste into renewable natural gas (biomethane), fertilizer and water. With a proven track record of delivering world-leading projects on four continents, Anaergia is uniquely positioned to provide end-to-end solutions for extracting organics from waste, implementing high efficiency anaerobic digestion, upgrading biogas, producing fertilizer and...

Our mission is to accelerate the world’s transition to sustainable energy. With global temperatures rising, the faster we free ourselves from fossil fuel reliance and achieve a zero-emission future, the better. In pursuit of this mission, we make electric vehicles that are not just great EVs, but the best cars, period. We also produce and install infinitely scalable clean...

Powerline develops AI systems for monitoring and operation of energy assets, enhancing the performance in power markets and reducing emissions.

Leap is the leading platform for generating new value from distributed energy resources (DERs) through integration with energy markets. Through its software-only solution, Leap facilitates fast, easy and automated access to high-value grid services revenue streams for the providers of batteries, electric vehicle charging, smart thermostats, HVAC systems and other flexible assets. By aggregating the DERs enrolled on its platform,...

Swift Solar is a U.S. company developing advanced solar technology that outperforms anything on the market today. Swift Solar is a spinout of Stanford, MIT, and the National Renewable Energy Laboratory. The team includes world-leading technologists with deep expertise in perovskite PV science, technology, and manufacturing. Swift Solar's technologies range from specialized solar cell architectures to advanced manufacturing techniques.

Adapture Renewables is a solar project developer (and M&A shop), owner and operator. The company leverages its proven track record, deep domain expertise and comprehensive in-house development, EPC management, legal and project finance services to efficiently and effectively drive solar projects from origination to long-term operation, and at every stage in-between. Backed by KIRKBI, Adapture Renewables has the financial footing...

Planted Solar has reinvented the solar power plant from design to installation with a rapid solar deployment platform to generate 2x more energy per acre, complete projects 3x as fast, and dramatically accelerate solar development throughput. Planted Solar uses development software and construction robots to build flexible, all-terrain, high-density power plants on previously unviable land. Backed by Breakthrough Energy Ventures...

Since day one, Nextracker’s mission has been to transition the world to affordable, renewable power, by developing the highest-performing and resilient solar tracking technologies and software in the market for our customers. From sustainable tracker solutions that conform to uneven terrain and withstand extreme weather, Nextracker systems have resilience built in. Nextracker leads the solar industry with solar tracker technologies that...